MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3ec0d6d70536417366fc1426a0f9bdeb5cb17c1dc175724d7c6381189708584. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AgentTesla


Vendor detections: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3ec0d6d70536417366fc1426a0f9bdeb5cb17c1dc175724d7c6381189708584
SHA3-384 hash: 413866629f12ef456495e7831a1ff0762a0a96aaace03600a45d79eea368da66bd9bb8c741889b7a0b19d8da291ec22b
SHA1 hash: 050c010c93e7b2f0d876509fed02f5723be2a570
MD5 hash: a2e432359be59629937fae7a914e7f01
humanhash: kansas-wyoming-bacon-saturn
File name:update.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:915'456 bytes
First seen:2021-05-25 06:21:48 UTC
Last seen:2021-05-25 07:05:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:DDwb976faMFcGQtdgLQ+EKkPUM1sQHYOAC7zFl6zTBDB04CSjDk/yVhjJ:wAf6GQvjcM1d4O57z2zThB04AQJ
Threatray 5'251 similar samples on MalwareBazaar
TLSH 1B155A2E50A9F162C168C27D0AC4742BED90DFB36131AD25ECD33F591738E4D796A22E
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/161655/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn34.29951.7002.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/791193
Signature
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 423592 Sample: update.exe Startdate: 25/05/2021 Architecture: WINDOWS Score: 100 55 smtp.yandex.ru 2->55 57 smtp.yandex.com 2->57 67 Found malware configuration 2->67 69 Multi AV Scanner detection for dropped file 2->69 71 Yara detected AgentTesla 2->71 73 6 other signatures 2->73 8 update.exe 7 2->8         started        12 MLdAu.exe 5 2->12         started        14 MLdAu.exe 2->14         started        signatures3 process4 file5 43 C:\Users\user\AppData\...\zICnLgVinC.exe, PE32 8->43 dropped 45 C:\Users\...\zICnLgVinC.exe:Zone.Identifier, ASCII 8->45 dropped 47 C:\Users\user\AppData\Local\Temp\tmp431.tmp, XML 8->47 dropped 49 C:\Users\user\AppData\...\update.exe.log, ASCII 8->49 dropped 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->75 77 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->77 79 Uses schtasks.exe or at.exe to add and modify task schedules 8->79 16 update.exe 2 9 8->16         started        21 schtasks.exe 1 8->21         started        81 Multi AV Scanner detection for dropped file 12->81 83 Machine Learning detection for dropped file 12->83 85 Injects a PE file into a foreign processes 12->85 23 schtasks.exe 1 12->23         started        25 MLdAu.exe 2 12->25         started        27 schtasks.exe 14->27         started        29 MLdAu.exe 14->29         started        31 MLdAu.exe 14->31         started        signatures6 process7 dnsIp8 51 smtp.yandex.ru 77.88.21.158, 49740, 49741, 49743 YANDEXRU Russian Federation 16->51 53 smtp.yandex.com 16->53 39 C:\Users\user\AppData\Roaming\...\MLdAu.exe, PE32 16->39 dropped 41 C:\Users\user\...\MLdAu.exe:Zone.Identifier, ASCII 16->41 dropped 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->59 61 Tries to steal Mail credentials (via file access) 16->61 63 Tries to harvest and steal ftp login credentials 16->63 65 3 other signatures 16->65 33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        37 conhost.exe 27->37         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3ec0d6d70536417366fc1426a0f9bdeb5cb17c1dc175724d7c6381189708584/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-05-25 06:22:10 UTC
AV detection:
7 of 47 (14.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpwa23lqknsbontpyfbgud433224wf6b3qlvojgxyy4bdclqqwca._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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ac47b139d248c057f7a65e3b9618fbc18806488b1cafb7796f18b8fe77b2d972
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b6f0e221dc2c0f99c4513331f8e2a4ab8f22d37f8a8ee49bd3566ea55b7bd885
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d4511fa399217b186b74d425d5a0857ae7fe394c9993d76f79beccf2ecea92e2
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dd441c834ab08db376a48b44fd5da46477d869b363173b77b1f8bf03a09d8769
AgentTesla
+ 5'241 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210525-tr1kfrtc6x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3ec0d6d70536417366fc1426a0f9bdeb5cb17c1dc175724d7c6381189708584

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/161655/

Comments